Manifold construction for explosion-engines.



e. MLHOLLEY. MANIFOLD CONSTRUCTION FOR EXPLOSION ENGINES.

APPLICATION FILED SEPT-4.1917- Patented Apr. 15, 1919.

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GECEGE M. HOLIIEY, 015 DETROIT, MICHIGAN, ASSIGNOR TO I-IOLLEY BROTHERS COMPANY, OF DETROIT, MICHIGAN, A CORPORATION 015 MICHIGAN.

WOLD CONSTRUCTION FOR EXPLOSION-ENGINES.

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Specifieation of Letters Patent.

Patented Apr. 15, 1919.

Application filed September 4, 1917. I Serial No. 189,667.

To all whom it may concern:

Be it known that I, Gnonon M. HoLLnY, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Manifold Construction for Explosion-Engines, of which the following is a specification, reference being had therein to the acompanying drawings.

The invention relates to explosion engines of the type employing relatively non-volatile fuels, such for instance as, kerosene, which require heating in forming the explosive mixture. The invention comprises the novel construction of manifold and associated mechanism by which the heating effect may be adjusted according to requirements.

In the drawings:

Figure 1 is a longitudinal section taken on line 1-1 of Fig. 3 through a portion of the manifold showlng my'improvements applied thereto, the adjustment of parts being such as to subject the explosive mixture to the maximum preheating effect.

Fig. 2 is a sectional plan view taken on line 22 of Fig. 1, and

Fig. 3 is a cross-section taken on line 3-3 of Fig. 2 showing the position of parts resulting in a minimum preheating of the explosive mixture.

A is the intake manifold of an explosion engine and B is the exhaust manifold thereof. C is a carbureter including a nozzle D for the liquid fuel and a mixing chamber E into which a limited quantity of air is drawn around the nozzle to operate as a vehicle for conveying the fuel. To'form the explosive mixture the mixed air and fuel must first be heated and then introduced into a larger volume of air to obtain the proper proportion. The necessary heat may be obtained from the exhaust gases, but it is essential to regulate this heat so as to avoid on the one hand overheating and carbonization, and on the other hand under-heating and imperfect vaporization. 1

With my improved construction I have provided a simple and convenient means of regulating theheat, the construction being as follows: F is the discharge and of the exhaust manifold arranged contrallythereof, and G is a wall or partition extending longitudinally of the manifold a'nd'centrally apertured at H in alinement with the discharge aperture F. I is a cylindrical valve mounted on a stem J which slidably engages bearings K to move axially and centrally of the apertures H and F. The upper end of this valve has a flaring flange L adapted to close the aperture H when arranged thereln, the diameter of the valve being less than that of said apertur'e'I-I so as to leave an annular space therearound in a dltferent position of adjustment. M isa heating coil surrounding the valve I and arranged in a chamber N of the manifold. The coil M is attached at one end M to the mixing chamber E, while its opposite end M extends to the inlet manifold.

With the construction as thus far described, when the valve is in the position shown in Fig. 1 the flaring flange L is adfrom the upper wall of the manifold will uncover the central opening through the valve so that the exhaust gases can pass through this opening to the aperture F without coming in contact with the coil M. If the valve is adjusted to a position intermediate the two positions, just described, some of the exhaust gases will pass in contact with the coil and another portion will pass through the center of the valve and out of contact with the coil. Thus by properly adjusting the valve, any desired heating effect may be produced.

Any suitable means for adjusting the valve either automatic or manually-operated may be provided, but as shown the stem J.

is operated by a bell-crank lever O actuated by a handle P fitting a notched segment Q for holding it in different positions of adjustment. v, What I claim as my invention is:

1. The combination with an exhaust manifold, of a" fuel heating coil arran ed therein, atubular sh'eld for protecting said coil from the exhaust gases, and means for adjusting said shield to expose the coil to said gases.

2. The combination with an exhaust manifold having a common discharge portion, of a fuel heating coil arranged within said discharge portion, a tubular shield within said coil for protecting the same from the exhaust gases, and means for adjusting said shield to a position for deflecting the gases around the same and against said coil.

3. The combination with an exhaust manifold having a common discharge portion, of a fuel heating coil arranged in said common discharge portion, a tubular valve within said coil, seats cooperating with said valve to deflect the exhaust gases therethrough, whereby the coil is shielded, and means for adjusting said valve from its seat to permit passage of the exhaust gases in contact with said coil.

4. The combination with an exhaust manifold having a common discharge portion, of a fuel heating coil arranged within said common discharge portion, a tubular valve within said coils, a seat cooperating with said valve to deflect the exhaust gases through the center thereof and to shield the coil therefrom, and a second seat against which said valve may be adjusted for closing the passage through said valve and deflecting the gases around the same and in contact with said fuel heating coil.

5. The combination with an exhaust manifold having a laterally-extending common discharge portion, of a fuel heating coil arranged in said portion, a tubular valve within said coil havinga flaring flange at one end thereof. a seat for coiiperating with said flange in oneposition of the valve to direct the exhaust gasesthrough the center of the valve and to shield the coil therefrom, and a second seat cooperating with said flange in another position of adjustment for closing the passage through the valve and deflecting.

the gases around the same and against said coil.

6. The combination with an exhaust manifold having a laterally-extending common discharge portion. of an apertured diaphragm for separating said discharge portion from the main portion of the manifold, a fuel heating coil in said discharge portion 7 beyond said diaphragm, a tubular valve with in said coil having a flaring flange for en;

gaging the aperture in said diaphragm to compel the passage of exhaust gases through the center of the valve, shielding the coil therefrom, and a seat in which said valve may be adjusted for closing communication with the center of the valve. whereby the gases are deflected around the valveand in,

contact with said coil.

7 The combination with an exhaust manifold, having a discharge portion, of a tubular member within said discharge portion, a fuel heating device surrounding said tubular member and protected from the exhaust gases by said member, and means for adjusting said member to a position for deflecting the gases around the same and against said fuel heating device.

8. The combination with an exhaust manifold having a discharge portion, of a tubular valve withinsaid discharge portion, a fuel heating device surrounding said tubular valve, seats cotiperating with said valve to deflect the exhaust gases therethrough, Whereby said heating device is shielded, and means for adjusting said valve from its seat to permit passage of the exhaust gases in contact with said heating device.

9. The combination with an exhaust mani fold having a discharge portion, of a tubular valve within said discharge portion, a

fuel heating device surrounding said tubular valve, a seat cooperating with said valve to deflect the exhaust gases through the center thereof and to shield the heating device therefrom. and a second seat against which said valve may be adjusted for closing the passage through said valve and deflecting the gases around the same and in contact with said fuel heating device.

10. The combination with an exhaust manifold having a laterally-extending discharge portion, of a tubular valve within said discharge portion having a flaring flange at one end thereof, a fuel heating device surrounding said tubular valve. a seat for cooperating with said flange in one position of the valve to direct the exhaust gases through the center of the valve and to shield the heating device therefrom. and a second seat cotiperating with said flange in another position of adjustment for closing the passage through the valve and deflecting the gases around the. same and against said heating device.

11. The combination, with an exhaust manicommunication with the center of the valve,

whereby the gases are deflected around the v'alve and in contact wlth said heating device. In testimony whereof I afiix my signature.

GEO. M. HOLLEY. 

